vinny111
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ammonuim nitrate problem
hi i recently got ammonuim nitrate out of a few cold packs. i tested it by using lye mixed with this an and water and it produced ammonia gas. here is
the thing it produces clumps but when i go to dry it in oven it melts and turns into water again. the oven temp is at 150 degrees F so its not
decomping. why is it doing this? please let me know thanks 
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Loptr
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It doesn't decompose until well over 200C. You might be looking at either melted ammonium nitrate, or ammonium nitrate dissolved in its own water of
hydration. However, the melting point is 337.3°F, which you are no where near, so I would assume its the latter, in which case keep heating.
http://www.sciencemadness.org/talk/viewthread.php?tid=721
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vinny111
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ok thanks i wasnt shure what had happened lol thanks very much
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nitro-genes
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There is still too much water present, 10% water and ammonium nitrate forms an eutectic, melting at around 100 deg C. Just needs to dry longer...
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vinny111
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ok ill keep heating it boiling out water how long does one boil?
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aga
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until it's dry, or starts to decompose, then turn off the heat.
No, you can't leave it and go do something else in the meantime.
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vinny111
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ok see i boiled it down til it was half its volume 600 ml and then cooled it in freezer to crystallize. i didnt know if an will boil right out with
the water. im new so dont judge me 
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Bert
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Thread Moved
8-6-2015 at 18:15 |
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